Don’t require power plug adapter while traveling from Tuvalu to Papua New Guinea.

Here's why you do not need an adapter

The outlet and plug type used in Papua New Guinea is I and in Tuvalu is I and they are compatible with each other.

Tuvalu

In Tuvalu, outlets of type I are in use.

Type I

Papua New Guinea

In Papua New Guinea, outlets of type I are in use.

Type I